Hot-air register



Patented Mar. 4, 1952 UNITED STATES PTEVNT OFFICE HOT-AIR REGISTER BayreLevin, Detroit, Mich. Application January 5, 1950, Serial No. 136,899 4Claims. (01. 9s 114) This invention relates to hot air registers, andmore particularly to a floor register construction.

Heretofore in the use of metallic floor registers there has been thedisadvantage of their heating up from the hot air which is directedtherethrough, and in some instances people have been burned by contactwith such registers. It is the principal object of this invention toprovide a floor register which will not heat up excessively, and this isaccomplished by a floor register construction which includes anintermediate hot air insulating pad or plate, whereby the grill of saidregister will not attain a dangerously high temperature. This and otherobjects will appear from the following specification and claims inconjunction with the appended drawing in which:

Figure 1 is a plan-view of the present floor register construction.

Figure 2 is a section on line 2-2 of Fig. 1.

Figure 3 is a fragmentary section on line 3-3 of Fig. 2.

Figure 4 is a fragmentary section on line 44 of Fig. 2, and

Figure 5 is similar to Figure 2, being a variation thereof.

It will be understood that the above drawing illustrates merely apreferred embodiment of the invention and that other embodiments arecontemplated within the scope of the claims hereafter set out.

Referring to the drawing a floor is fragmentarily indicated at H withsub-flooring shown at l2. Rectangular opening I3 is formed throughsub-flooring l2 and partially into the floor Enlarged rectangular I4 isformed within the top portion of floor I at the upper end of opening I3.

Rectangular hollow frame I5 for the floor register is positioned throughfloor opening I3, said frame having a peripheral flange l6 which iscooperatively received within the floor opening I4 so that the topsurface of said flange is in alignment with the floor The flange I6projects from the upper portion of the register frame l5, and a secondinwardly projecting flange I! extends from the lower portion of saidframe as shown in Figure 2, defining the central air opening l8.

A suitable preferably rectangular lower grill l9 with transverseperforations 20 is positioned within frame I5 and supported upon theflange IT, as indicated in Figures 2 and 4. The grill I9 is preferablymetallic, however, it is contemplated that any other suitable materialcould be employed for this purpose.

Mounted upon the lower grill l9 within the frame I5 is a rectangularlyshaped plate or pad 2| constructed of a heat insulating material, saidplate being similarly perforated at 22, and with the perforations 22being in substantial alignment with the perforations 20 of the grill I9. While a relatively large perforation 20 and 22 is shown, it iscontemplated that the perforations may be of any desirable shape orsize. Preferably, however, the perforations 20 of grill l9 should be insubstantial alignment with the perforations 22 of the insulator pad 2|as shown in Figure 2.

A top or cover grill 23 is mounted upon insulator pad 2| within theframe l5, said grill also having formed therethrough a plurality oftransverse perforations or openings 24, which are arranged insubstantial alignment with openings 29 and 22, above described. Theexterior dimensions of the top grill 23 are such that said grill issnugly or tightly received within the central opening of the registerframe l5. Furthermore, the grills l9 and 23, as well as the insulator2|, are of such thickness that the top surface of grill 23 will be flushwith the floor surface II.

It is contemplated however that the top grill 23 could be otherwisesecured to the frame l5, such as by a series of screws.

A ceiling furnace 25 of the hot air type is shown in dotted lines inFigure 2 being suspended from the ceiling I2 by a plurality of brackets26 secured to said ceiling by the screws or bolts 21. This representsone type of hot air source such as may be used in basementless homes, orin house constructions where it is desired to suspend the hot airfurnace from the ceiling of the basement. In any event, the particularhot air source, whether suspended as shown, or mounted upon the basementfloor, as a hot-air delivery pipe 28, which is adapted for communicationwith the inlet opening I 8 formed within the register frame I5, so thatthe hot air is supplied to said register.

It has been found that heretofore the hot air heats up the registergrill to such a point as to be dangerous to humans or animals, and it istherefore primarily the object herein to provide a hot air insulatingmedium within the floor register so that the top grill will not attainsuch dangerous temperature. The grill 23 is preferably metallic tosupport the weight of an individual, however, it is contemplated thatother materials could be employed which would have such rigidity.

The present embodiment shows the lower grill l9 which acts as a supportfor the insulator 2|. It is contemplated that this grill could beomitted if desired, and still attain the object above set out. However,it is apparent that this lower grill acts as a further support for theinsulator pad.

As shown in Figure 1, the register frame I5 is immovably secured withinthe floor openings by a pluralityv of screws 29 which extend downwardlythrough openings in the flange l6 and into the floor ll.

While a rectangular frame is shown it is naturally contemplated thatsuch frame could be of any desired shape, such as circular.

Fig. 5 is similar to Figure 2 but represents a slight variation in theconstruction of the register. A hollow rectangular frame I5 is shownsimilar to the frame I5 of Figure 2, however, it is apparent that saidframe is not quite as deep.

A peripheral flange is also provided at the upper end of the frame forsupporting said frame in exactly the same manner shown in Fig. 2.Similarly at the lower end of frame l5 there is also an inwardlyextending flange upon which it issupported and secured the body of saidregister. The latter includes a plurality of parallel spaced metallictubular elements 32 whose opposite ends extend over the interiorinwardly extending lower flange of frame 15.

One or more reenforcing crossbars 3| are arranged below and transverselyof the length of the tubes 30' with the respective opposite ends of saidcrossbars overlying portions of the inwardly extending flange of saidframe as shown in Figure 5. Said crossbars may be secured to the tubularelements 3!? in any suitable manner such as by welding at points 33, tothereby provide a unitary and rigid structure.

'While in Figures 1 through 4 there is shown a separate heat insulatingplate or pad 2! it is contemplated in the variation shown in Figure 5that the respective tubes 39 be filled with a suitable, preferablynon-metallic, heat insulating substance 32, to thereby render the tubes30 substantially less heat conductive.

Having described my invention reference should now be had to the claimswhich follow for determining the scope thereof.

I claim:

1. In a hot air register for a floor having an opening in communicationwith a hot air source, a hollow frame in said opening, a peripheralflange around the upper portion of said frame supportably engageablewith said floor, aninwardly projecting flange Within the lower portionof said frame, a perforated plate constructed of a heat-insulatingsubstance positioned within said frame and supported upon said inwardlyprojecting flange, and a similarly perforated metallic grill positionedwithin said frame and supported upon said plate.

2. In a hot air register for a floor having an opening in communicationwith a hot air source, a hollow frame in said opening, a peripheralflange around the upper portion of said frame supportably engageablewith said floor, an inwardly projecting flange within the lower portionof said frame, a perforated metallic grill within said frame supportedupon said latter flange, a perforated plate constructed of aheat-insulating substance positioned within said frame and supportedupon said grill, and a similarly perforated metallic grill positionedwithin said frame and supported upon said perforated plate.

3. In a hot air register for a floor, a pair of parallel spacedperforated metallic grills, and a similarly perforated pad constructedof a heatinsulating material interposed between and engaging saidgrills, with all said perforations being in substantial alignment.

4. In combination, a floor having an opening therethrough, a hot airsource suspended from the under side of said floor adapted'to deliver aflow of hot air through said opening, and a register Within said openingconsisting ofasupporting frame with a peripheral flange positionedwithin said opening and with said flange engaging said floor, aninwardly-extending flange on said frame, apair of spaced perforatedmetallic grills within said frame, upon saidlatter'flange, and asimilarly perforated pad of heat-insulating material interposed betweensaid grills.

BAYRE LEVIN.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 61,538 Harvey Jan. 29, 1867541,204 Hallenbeck June 18, 1895 914,791 Clark Mar. 9, 1909 1,018,750Farquhar Feb. 2'7, 1912 2,282,572 Graham 1 May 12, 1942 2,434,763Feinberg Jan. 20, 1948 FOREIGN PATENTS Number Country Date 14,128 GreatBritain 1912

